Pith Number

pith:P4HYPYMU

pith:2016:P4HYPYMU5JLGXE3J2XGCI2WQTK

not attested not anchored not stored refs pending

On rigidity of flag varieties

Andrzej Weber, Jaros{\l}aw A. Wi\'sniewski

arxiv:1606.02670 v2 · 2016-06-08 · math.AG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P4HYPYMU5JLGXE3J2XGCI2WQTK}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:59:58.236507Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f0f87e194ea566b9369d5cc246ad09a98ca9b761f5580d2bb19d6a4b5effde9

Aliases

arxiv: 1606.02670 · arxiv_version: 1606.02670v2 · doi: 10.48550/arxiv.1606.02670 · pith_short_12: P4HYPYMU5JLG · pith_short_16: P4HYPYMU5JLGXE3J · pith_short_8: P4HYPYMU

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/P4HYPYMU5JLGXE3J2XGCI2WQTK \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 7f0f87e194ea566b9369d5cc246ad09a98ca9b761f5580d2bb19d6a4b5effde9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91dcb980646865935e7227feddbf528fa60ebf69376fd211038be208f706970f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-06-08T18:12:31Z",
    "title_canon_sha256": "b81cdc7f28caa801f31dac9fe55e49774e81879d4f2f986c2f88e080db9b14eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.02670",
    "kind": "arxiv",
    "version": 2
  }
}